Compatibility Rating
At 20°C (68°F)
Poor
Not recommended - significant degradation expected
At 50°C (122°F)
Poor
Not recommended - significant degradation expected
Why is PETG rated this way to Diisobutylene?
PETG is not recommended for use with Diisobutylene. Significant degradation or failure is expected.
⚠️ When NOT to use PETG
Avoid using PETG with strong acids, alkalis, and most organic solvents. Better impact resistance than PET but lower chemical resistance.
Comparison Table — All Materials for Diisobutylene
| Material | 20°C | 50°C |
|---|---|---|
| HDPE | A | D |
| LDPE | A | C |
| PP | A | D |
| PTFE | A | A |
| PVDF | A | C |
| FEP | A | A |
| ECTFE/ETFE | NR | NR |
| EPDM | C | NR |
| Viton (FPM) | D | D |
| NBR | D | D |
| Silicone | NR | NR |
| SS 316 | A | A |
| SS 304 | A | A |
| Aluminium | A | A |
| PVC Rigid | D | D |
| PVC Flexible | NR | NR |
| PMP | D | D |
| Polystyrene | NR | NR |
| SAN | NR | NR |
| Polycarbonate | C | C |
| PETG | D | D |
| Acetal (POM) | A | NR |
| Nylon (PA) | C | C |
| Polysulfone | NR | NR |
A=Excellent · B=Good · C=Fair · D=Poor · NR=No Data
🌡️ Temperature Note
Maximum service temperature for this material is 70°C. Always verify compatibility at your specific operating conditions.
🔄 Better Alternative?
Consider: Polycarbonate or PP. View all materials for Diisobutylene →
FAQ
Is PETG resistant to Diisobutylene?
PETG has Poor (D) resistance to Diisobutylene at 20°C. Not recommended - significant degradation expected.
Can I store Diisobutylene in PETG containers?
Use caution - PETG is rated D (Poor) for Diisobutylene.